330 Patten St, Sonoma, CA 95476 Property Records

Sonoma County property record for 330 Patten St, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 2,411 sqft · built 1914
Lot Size	0.178 acres (7,750 sqft)
Owner	Company Name on File
Last Sale	$2,250,000 (Jun 2017)
Tax Bill	$32,077 (2025)
Deeds & Mortgages	Jun 2017 Sale
Flood Zone	Zone X (moderate risk)
APN	`018-271-008-000`

Property Details

APN / Parcel Number

Primary APN	`018-271-008-000`
Alternative APN	`018-271-008`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	2,411 sqft Living Area
1st Floor Area	2,411 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1914
Effective Year Built	Effective 2007
Construction Type	Wood
Lot Area	7,750 sqft (0.178 acres)
Garage Type	Detached
Garage Area	402 sqft

Utilities, Heating & Cooling

Cooling System	None
Heating System	Central

Location & Zoning

Old Parcel Number	018-271-008
Street Address	330 PATTEN ST
City	SONOMA
State	CA
Zip	95476-6732
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	PTN LOT 274
Legal Subdivision	CITY OF SONOMA
Legal Block	1
Legal Lot Number	274
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1000
Census Tract	150204

Owner

Source: Sonoma County assessment roll, APN 018-271-008-000, as of April 13, 2026 · Last verified April 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	1200 CALIFORNIA ST, 21B, SAN FRANCISCO, CA 94109-0004
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jun 30, 2017 · Amount on Record
Deed Sale	Jun 30, 2017 · Amount on Record
Prior Sale	Jan 26, 2015 · Amount on Record
Deed Document Number	201750893
Prior Transfer Date	Oct 13, 2015
Prior Transfer Doc	0000092853
Record Updated	Jun 08, 2026

June 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Jun 30, 2017
Property Address	330 PATTEN ST, SONOMA, CA 95476-6732
Document Number	0000050893
Instrument Date	Jun 20, 2017
Instrument	50893
Transaction Type	Transfer
Record Updated	Sep 29, 2017
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$2,475.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	330 PATTEN ST SONOMA CA 954766732, SONOMA, CA 95476-6732

Tax Assessment & Valuation

Source: Sonoma County assessment roll as of April 13, 2026 · Last verified April 2026

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Sonoma City
Unified School District	Sonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

Year	Tax Bill	Assessed Value
2025	$32,077.00 (+5.52%)	$2,611,314 (+4.04%) Land $928,467 Building $1,682,847
2023	$30,398.00 (+0.32%)	$2,509,914 Land $892,414 Building $1,617,500
2022	$30,301.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), as of February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971502041, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 15 policies
Nearby Flood Policies	15 in force
Nearby Flood Claims	8 (1978–2025)
Claims Outside the SFHA	6 of 8
Most Recent Claim	Feb 2025 · rainfall accumulation
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Feb 2019 · 2 claims Severe Winter Storm, Mud & Land Slides, & Flooding, Jan 1993 · 2 claims

Wildfire

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Historic Designation

Source: NPS National Register of Historic Places as of August 1, 2026 · Last verified October 2026

Historic District	Within the Sonoma Plaza listed 1975 · 31 contributing resources · National Historic Landmark (designated 1960) · NRIS 75000489

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Internet Providers

Source: FCC Broadband Data Collection, 579 locations within half a mile, as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA4910012, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF SONOMA serves 10,619 people
Water Source	Groundwater
Last State Inspection	Jul 2024
Lead	Under 1 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.